<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
            <script>
              a =  parseInt('10');
                console.log(a);



              var z = window.parseInt(getComputedStyle(s)['height']);    //parseInt的用法
            </script>
</body>
</html>